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Assertion (A): H_2 and O_2 have same R.M.S. velocity at the same temperature. Reason ® : R.M.S. velocity of a gas molecules is directly proportional to square root its 'T'.

Answer»

A & R are TRUE, R explains A 
A & R are true, R does not EXPLAIN
A is true R is FALSE 
A is false R is true 

Solution :`(U_(H_2))/(U_(O_2)) = SQRT((M_2)/(M_1)) = sqrt((32)/(2)) = 4`.


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